Mike Holt Circuit Sizing - Air-Conditioning Sizing air-conditioning circuits are really simple. Just read the nameplate and use the NEC Table 310.16 (2020 NEC) and 240.4(D) and 240.4(G), 240.6, and 440.6(B). | Mike Holt Enterprises
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Mike Holt Circuit Sizing - Air-Conditioning Sizing air-conditioning circuits are really simple. Just read the nameplate and use the NEC Table 310.16 (2020 NEC) and 240.4(D) and 240.4(G), 240.6, and 440.6(B). | Mike Holt Enterprises
65.3K viewsMar 3, 2020
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Visit mikeholt.com/graphic to see today's daily graphic - new images posted daily. These images are extracted from Mike Holt's Understanding the NEC Volume 1. #NECGraphic #MikeHolt #2023NEC #ElectricalEducation #ElectricalTraining #Electrician #NECRequirements | Mike Holt Enterprises
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Visit mikeholt.com/graphic to see today's daily graphic - new images posted daily. These images are extracted from Mike Holt's Understanding the NEC Volume 1. #NECGraphic #MikeHolt #2023NEC #ElectricalEducation #ElectricalTraining #Electrician #NECRequirements | Mike Holt Enterprises
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In this video, NEC expert Mike Holt explains how to properly ground a corner grounded delta system and the special characteristics of these rare systems… | Mike Holt Enterprises
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In this video, NEC expert Mike Holt explains how to properly ground a corner grounded delta system and the special characteristics of these rare systems… | Mike Holt Enterprises
2.4K viewsJun 11, 2021
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Visit MikeHolt.com/Fantasies to overcome your ground rod fantasies… | Mike Holt Enterprises
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Visit MikeHolt.com/Fantasies to overcome your ground rod fantasies… | Mike Holt Enterprises
90.4K viewsApr 20, 2024
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Motor Conductor and Short-Circuit Ground-Fault Protection Sizing. Conductors are sized at 125% of Motor FLC (Article Table), based on 75C column of Table 310.16 (all terminals are rated 75C), see NEC 110.14(C)(1)(a)(3) and 430.22(A) [22A x 125% = 28A]. Breaker used for short-circuit ground-fault protection sized to 250% of motor FLC, see NEC 430.52(C)(1)(a) [22A x 250% = 55A]. The limitation of 30A protection for 10 AWG does not apply to motor branch circuits, see NEC 240.4(D) and 240.4(G). As f
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Motor Conductor and Short-Circuit Ground-Fault Protection Sizing. Conductors are sized at 125% of Motor FLC (Article Table), based on 75C column of Table 310.16 (all terminals are rated 75C), see NEC 110.14(C)(1)(a)(3) and 430.22(A) [22A x 125% = 28A]. Breaker used for short-circuit ground-fault protection sized to 250% of motor FLC, see NEC 430.52(C)(1)(a) [22A x 250% = 55A]. The limitation of 30A protection for 10 AWG does not apply to motor branch circuits, see NEC 240.4(D) and 240.4(G). As f
74.7K views5 months ago
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Generac generator power and control wires are permitted to be installed in the same raceway, see installation instructions [110.3(B)] and NEC 300.3(C)(1). | Mike Holt Enterprises
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Generac generator power and control wires are permitted to be installed in the same raceway, see installation instructions [110.3(B)] and NEC 300.3(C)(1). | Mike Holt Enterprises
60.5K viewsJul 10, 2024
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ONLY A FEW SPOTS LEFT!! Join Mike Holt and his special guest speakers in Orlando for this can’t miss CEU Seminar July 22-23. Topics include Business Skills, Electrical Safety, and Bonding and Grounding. Register now: Call 888.632.2633 or visit http://www.mikeholt.com/seminars | Mike Holt Enterprises
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ONLY A FEW SPOTS LEFT!! Join Mike Holt and his special guest speakers in Orlando for this can’t miss CEU Seminar July 22-23. Topics include Business Skills, Electrical Safety, and Bonding and Grounding. Register now: Call 888.632.2633 or visit http://www.mikeholt.com/seminars | Mike Holt Enterprises
8K viewsJul 13, 2022
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To better provide for your family, you need to Understand the Nation Electrical Code. We have the tools to get you to the next level. 888.NEC.Code | Mike Holt Enterprises
300 viewsOct 27, 2023
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Have you ever faced an EV equipment installation and been worried about upgrading the electrical service? A new change in the 2023 NEC section 220.70 allows energy management systems to limit the current of your electrical system so avoid the need for an upgrade! To follow along with this video, you can download the FREE PDF from our newsletter on this topic. Click the link below: 🔗https://www.mikeholt.com/newsletters.php?action=display&letterID=2870 Want to learn more about the NEC? Mike's Und
2.6K viewsDec 25, 2024
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Four weeks ago I fractured my shoulder Mountain Biking. I’m back on my bike and pushing myself to the next level. I’m 72 and I’m on fire; what about you! | Mike Holt Enterprises
875 viewsMay 29, 2023
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The first time you’re called upon to size a conductor and overcurrent device for central air-conditioning and you look at the nameplate requirements that clearly state that a 10 AWG copper conductor and a 50A OCPD are required, it may contradict everything you’ve learned about small conductors. In fact, you may adamantly insist that 6 AWG is required by the Code and you’d be wrong! Learn why in this video on section 440.4(B) of the NEC... https://www.mikeholt.com/newsletters.php?action=display&l
2.3K viewsJan 21, 2021
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Don’t become a Dinosaur | Mike Holt Enterprises
18.5K viewsJul 23, 2024
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The grounding electrode conductor is permitted to originate at the meter enclosure or service equipment. It’s just that simple, see 250.24(A)(1). | Mike Holt Enterprises
138.5K viewsMay 24, 2024
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There is no definitive answer about GFCI protection on hardwired EV chargers outside dwelling units. The decision will have to be made by the inspector. See 90.4, 110.3(B), 210.8(F), and 625.54. | Mike Holt Enterprises
12.3K viewsMay 31, 2024
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Locking service disconnect? | Mike Holt Enterprises
19.8K viewsJun 1, 2024
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Off to Florida to record “Electrical Theory” starting Sunday morning 9 am Eastern time. Register now at MikeHolt.com/Live. | Mike Holt Enterprises
1.8K viewsApr 27, 2022
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When burying wiring we need to have sufficient ‘cover’ in accordance with NEC Table 300.5(A). In this case it’s at least 20 inches, not 18! | Mike Holt Enterprises
91.4K viewsJul 15, 2024
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One of the most exciting developments in modern electrical technology is the rapid growth of electric vehicles (EVs). But what’s even more groundbreaking is this: you can now power your home using energy stored in your EV’s battery. This powerful new capability, known as bidirectional power transfer, is the driving force behind the title of Article 625 “Electric Vehicle Power Transfer Systems.” So, what exactly does Article 625 cover? Join Mike and the video team as they walk through Article 625
4K views7 months ago
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It’s our birthday! 😊 50 years ago, we made it our mission to serve the electrical trade with training and support. Thanks for helping us reach this milestone! Grateful to be a part of this incredible industry for so many decades. Have our products made a difference in your career? Please share your story in the comments. 50 years and counting… we are just getting started! | Mike Holt Enterprises
560 viewsJan 15, 2025
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It pisses me off when people ignore the NEC rules. | Mike Holt Enterprises
1.8K viewsMay 23, 2024
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Many think that grounding protects against a ground fault, but physics and the National Electrical Code prove otherwise. Watch MikeHolt.com/GroundRod | Mike Holt Enterprises
77.5K viewsApr 27, 2024
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Perhaps one of the most interesting changes in the 2023 National Electrical Code is the addition of section 110.17 which requires that servicing and maintenance of equipment must be performed by qualified personnel. This new rule has an informational note referencing NFPA 70B “Recommended Practice for Electrical Equipment Maintenance” to guide Code users on the standard related to preventative maintenance for electrical equipment. Download a FREE PDF of this rule as you join Mike and the team ex
510 viewsJan 25, 2024
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For an installation to be safe from electric shock, run an equipment grounding conductor to the metal pole. Not a ground rod! See NEC 250.4(A), 250.54, and 410.30(B)(5). | Mike Holt Enterprises
180.1K viewsMay 9, 2024
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Let me dispel the fantasies of connecting a metal light pole to a ground rod. For the details watch MikeHolt.com/Fantasies | Mike Holt Enterprises
452.7K viewsApr 21, 2024
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The NEC does not require a connector for the Grounding Electrode Conductor. NEC fact after 125 years. | Mike Holt Enterprises
281.1K viewsJul 26, 2024
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Mike Holt on Making Electrical Education Practical
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What was it like to study with Mike back when he started teaching? Very interesting response here 😂
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